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Ben HalpernMay 22, 2026 • 4 min read
How we're using Gemini Embeddings to build a smarter, community-driven feed on DEV
Big improvements incoming 👋 Finding the right balance for a feed algorithm is historically really....
#gemini#ai#googlecloud#postgres
97 24
Franck PachotMay 26, 2026 • 6 min read
The Autovacuum Scale Factor Problem at Scale - Know Your Defaults
In PostgreSQL, autovacuum and autoanalyze exist to clean up dead tuples (old versions of...
#postgres#sql#database#performane
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Sireesha ChavvakulaMay 25, 2026 • 6 min read
I built a local Postgres triage co-pilot because HIPAA says I can't paste plans into ChatGPT or Claude
This is a submission for the Gemma 4 Challenge: Build with Gemma 4 What I Built I am a.....
#devchallenge#gemmachallenge#postgres#ai
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Vadym ArnautMay 27, 2026 • 2 min read
The auth_rls_initplan linter has a blind spot: SECURITY DEFINER bodies
If you've ever migrated a Supabase project to the wrapped (SELECT auth.uid()) pattern, you know the....
#supabase#postgres#webdev#database
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ndmt1at21May 26, 2026 • 7 min read
A Go outbox library that runs inside your own DB transaction
tickr is a Postgres-backed outbox + worker pool for Go. You enqueue messages in the same transaction...
#go#postgres#microservices#opensource
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Vadym ArnautMay 28, 2026 • 6 min read
There is no source language: a manifesto for symmetric multilingual content
Three weeks ago I shipped a bilingual LMS. The architecture modeled one language as source and the.....
#architecture#i18n#webdev#postgres
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Pedro SantosMay 25, 2026 • 4 min read
Similarity Search for Failure Diagnosis
Similarity Search for Failure Diagnosis In the previous post, I showed how every saga...
#java#ai#langchain4j#postgres
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Ugur AslimMay 22, 2026 • 4 min read
Building Multi-Tenant Row-Level Security in PostgreSQL: A Production Pattern
Skip the ORM magic and implement true RLS policies with SQLAlchemy to isolate tenant data at the dat...
#postgres#sqlalchemy#multitenancy#security
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Ugur AslimMay 22, 2026 • 4 min read
Building Audit Logs That Don't Destroy Your Database: A Production Pattern
How to design scalable, queryable audit logs in PostgreSQL without performance degradation using par...
#postgres#sqlalchemy#architecture#saas
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Jijo BoseMay 26, 2026 • 11 min read
Building an Error Monitoring Tool Without Pricing Overages
The bill that arrives after the incident Picture the worst version of a Tuesday. You ship...
#postgres#rails#saas#monitoring
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Ugur AslimMay 22, 2026 • 9 min read
I Built a Multi-Tenant SaaS for 50+ Tenants — Here's the Complete Architecture
End-to-end multi-tenant SaaS architecture from database to frontend: PostgreSQL RLS, JWT design, RBA...
#postgres#fastapi#react#architecture
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Do Pham DinhMay 24, 2026 • 7 min read
The race condition a stress test found in my double-entry ledger — and how I fixed it
A concurrency bug that lost 85% of balance updates under load, and the optimistic-locking + bounded-...
#java#springboot#postgres#concurrency
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YuryMay 26, 2026 • 7 min read
Transaction Hooks: A General Primitive for Post-Commit Side Effects (Case Study: Queuert)
The previous two posts in this series walked through how Queuert keeps job state atomic with your...
#node#opensource#prisma#postgres
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The Hive CollectiveMay 26, 2026 • 4 min read
Concurrent writes to a shared agent memory: what we shipped, what we punted on
A reader asked how a collective knowledge layer handles two agents writing the same key in the same ...
#ai#agents#opensource#postgres
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Pranay RaviMay 23, 2026 • 7 min read
From Zombie Connections to XactSync: A Post-Mortem on Aurora Postgres CPU Spikes
The alert fires at 1:28 PM. By the time you open CloudWatch, CPU is already back to normal. No...
#postgres#aws#database#devops
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SPANLENSMay 27, 2026 • 7 min read
5 gotchas I hit moving LLM logs from Postgres to ClickHouse
The problem I am building Spanlens, an open-source LLM observability platform. Every call...
#clickhouse#opensource#typescript#postgres
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Dmitry MaranikMay 26, 2026 • 4 min read
I Lint-Ran 4 Public Supabase Apps. They All Leak Rows.
I ran pgrls — an open-source Postgres Row-Level Security linter I maintain — against four...
#supabase#postgres#security#opensource
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Ugur AslimMay 23, 2026 • 5 min read
Testing FastAPI + SQLAlchemy with Real PostgreSQL Fixtures: No More Mocking Misery
Use Docker and pytest fixtures to spin up isolated PostgreSQL databases for each test run, catching ...
#fastapi#sqlalchemy#postgres#testing
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Alex ZhdankovMay 28, 2026 • 6 min read
SQLite as an offline metrics buffer in a monitoring agent
Reliable monitoring becomes surprisingly hard once you assume the network will eventually...
#python#postgres#sqlite#devops
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Ugur AslimMay 22, 2026 • 4 min read
Building Multi-Tenant SaaS with SQLAlchemy Row-Level Security
Implement tenant isolation at the database layer using SQLAlchemy's session management and PostgreSQ...
#postgres#sqlalchemy#multitenancy#security
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JoongHyuk ShinMay 25, 2026 • 9 min read
1.3.4 RETURNING Mapping and View-Target DML Transformation
The previous section (1.3.3) looked at the work the rewriter does to fill empty slots with values an...
#postgres#database#internals#views
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Harsh KushwahaMay 26, 2026 • 11 min read
Prisma-7 A Complete Beginners Guide (With Free Cloud Database!)
No prior database experience needed. This guide walks you through everything — what Prisma is, how.....
#ai#webdev#prisma#postgres
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Ugur AslimMay 24, 2026 • 4 min read
SQLAlchemy Bulk Operations for AI Feature Analytics: Writing 10K Events/Second Without Database Meltdown
Use SQLAlchemy's bulk_insert_mappings() and session batching to log AI feature usage events at scale...
#sqlalchemy#postgres#performance#python
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Kingsley OnohMay 22, 2026 • 4 min read
Why I Moved Redis Acknowledgement Outside the Database Transaction
One good parcel event, one bad parcel event, one batch. That was enough to lose the good one. The co...
#redisstreams#springboot#idempotency#postgres
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